I have an M&P 9 mm L model that I bought as a police trade in. I have been carrying it quite a bit recently and shooting Dot Drills with it. I have some reloads that I shoot for practice....Unfortunately some of those reloads are on Glock brass- came off a police range, once fired, nice stuff- FREE.....A few of the rounds I was unable to get the "Glock bulge" out of the casings and they are oversized at the base. Many of my pistols will feed them without issue, I get a few that hang up.....The Smith is probably the worst pistol I have in this regard....
With the Smith they will stick in the chamber and I cannot get them to extract. I have to resort to a hammer and a rod to tap the cases out.... The extractor slips off the case leaving it in the chamber when I slap the frame to clear it.....
Thoughts?
One thing that I can think to try is a Lee 9mm "small base" die. Unfortunately, you can't run 9 mm cases through a die to completely reform them- they are tapered...the best you can do is the small base die but I'm afraid that it may not swage down far enough- which is the issue with my current dies.